Window glass cushioning device



Julyl 18, 1933.

c. c. DUNN WINDOW GLSS CUSHIONING DEVICE 'Filed April 11, 1932 l Ov Z: :.252 i m 7.

Patented `luly 18, 1933 UNITED `STATES PATENT OFFICE CHARLES C. DUNN, F CINCINNATL-OHIO, ASSIGNOR TO THE RANDALL COMPANY, O1?

CINCINNATI, OHIO, A CORPORATION OF OHIO WINDOW GLASS CUSHIONING DEVICE Application led April 11,

This invention relates to the guiding and cushioning of sliding glass of automobile doors and windows and it has as a primary object to provide improved means for this purpose which will satisfactorily meet all the demands of the trade and which, in addition may be made and installed at a fraction of the cost of those heretofore provided. Another object of the invention is to provide 1o an improved method of making cushioning devices and securing them to the edges of sliding window glass.

As heretofore constructed, such devices have usually consisted of a. channel or rabbet i5 formed in each stile of the door or window frame and a lining of cushioning material such, for example, as rubber. felt or other suitable material, extending the full length of said channel and within which the glass 2o was slidingly fitted.

To preclude cutting of the cushioning material by the sliding movement of the glass it heretofore has been necessary to produce a smooth finish on the edge of the glass and slightly to round the corners thereof. This has been done by grinding and has added considerably to the cost of production.

The presentinvention provides a cushioning means which obviates the necessity of this 3o grinding operation and which, therefore, effects a material reduction in the cost of manufacture.

The present invention effects a still further and greater saving inthat i t provides a construction in which complete cushioning of the glass is obtained by the use of approximately one-half the amount of cushioning material heretofore required. As above stated, the practice heretofore has been to provide a 4o cushioning member the fulllength of the channel in the frame, which Channel and cushion obviously must be approximately twice the length of the glass slid able therein in order to permit the window to be cushioned when completely closed and completely opened. Thus to accommodate a sixteen inch glass necessitated the provision of thirty-two inches of cushioning material in each of the two Stiles. This invention proposes to reduce the amount of cushioning material to half by 1932. serial No. 604,583.

securing the cushion to the opposite edges of the glass and causing it to travel with the glass up and down in the channels in the frames. This has been effected, without reduring the efficiency of the cushioning material, by reversing the cushioning device and having its friction face arranged outwardly from the glass and engaging the walls of the channelinstead of being arranged inwardly and engaging the surface of the glass.

ln the United States Patent No. 1,843,433, issued February 2, 1932, to Howard D. Randall, there is shown and described an improved cushioning material especially adapted for this purpose. That material comprises a waterproof sheet having embedded therein a myriad of relatively stiff hairs which project perpendicular to the face of said sheet and present a brush-like friction surface. T propose to take this, or other suitable material, and secure it upon the opposite edges of the sual automobile window glass with the .friction surface thereof extending outwardly and adapted to be fitted within the usual rabbet in the stile of the door or window. The advantages arising from the use of the material disclosed in said patent are fully described therein and, therefore, Vneed not be here repeated.v

Preferably the cushioning material will be 8o aiiixed to a suitable metal base which may be A secured to the edges of the glass in any suitable manner. One convenient way, as shown in the drawing, is to form the base of resilient metal and to secure the base, and its attached cushioning means, to the glass by frictional contact.

Other objects and advantages will be in part indicated in the following description and in part rendered apparent therefrom in connection with the annexed drawing.

To enable others skilled ,in the art so fully to apprehend the underlying features hereof that they may embody the same in the various ways contemplated by this invention, a 95 drawing depicting a preferred typical construction has been annexed as a part o f this disclosure and, in such drawing, like characters of reference denote corresponding parts throughout all the views, of which 100 Figure l is a horizontal sectional view showing my improved cushioning device secured upon one edge of a window glass and fitted within the usual rabbet formed in Window stile. Fig. 2 is a similar view showing the use of a metallic lining member in the rabbet. Fig. 3 is a perspective view of the lining member for the rabbet and my improved cushioning device secured upon one edge of a window glass, adapted to be inserted therein. Fig. 4 is an enlarged sectional view of my improved resilient cushioning device showing its normally contracted condition as when removed from the window glass, which is shown in dotted lines. Fig. 5 is a central vertical section through Fig. 2, showing the bending action of the hairs as the window is translated.

Referring more specifically to the drawing the invention is shown as applied to a window glass 1 adapted to be reciprocated in a channel or rabbet 2in the usual stile 3 of a window or door of an automobile. The rabbet 2 is preferably, but not necessarily, provided with a. substantially U-shaped metallic. lining 4 which affords a smooth and unobstructed channel extending the full length of the stile. Preferably the outer marginal portions of the lining 4 are folded back upon themselves as shown at 4a to produce a smooth finished edge at 4b. The usual garnish moulding 5 may be employed to complete the rabbet or to hold the lining 4 in place.

To provide the necessary cushioning and friction between the edge of the glass 1 and the rabbet, I propose to'secure upon the edge of the glass a cushioning element, designated generally as C, adapted frictionally to engage the inner surfaces of the rabbet,`or if the lining 4 is employed, to engage the inner surfaces of that member.

As shown most clearly in Fig. 4 the cushioning device C comprises a sheet of Water? proof material 6, preferably rubber, into which is embedded or otherwise secured a myriad of relatively stiff hairs 7. s uch for example, as goats hair, which project outwardly perpendicular to the face of the sheet and present a brush-like surface. If desired, the waterproof sheet may be provided with a backing 8 of fabric or other suitable flexible material. The cushioning element is secured, in any suitable manner, upon a substantially U-shaped channel 9 of resilient sheet metal with the hairs 7 projecting outwardly therefrom. The marginal portions of the channel member 9 are preferably rolled back as shown at 9a to grip the margins of the sheet 6 and the backing sheet 8 if the same be employed. This forms a union between the cushioning element and the retaining channel and provides a smooth finished edge. As above stated the channel 9 is formed of resilient metal. The portions of this element normally maintain a shape and position as shown in Fig. 4 i. e. with the marginal portions spaced apart a distance materially less than the thickness of the glass 1 adapted to be inserted therein. Insertion of the glass into the channel 9 causes the Walls of the channel to be deiiected outwardly from their normal positions whereby, due to the resiliency of the metal, the channel grips the glass sufficiently tight to prevent any relative movement therebetween under the conditions of normal use.

The channel 9 is preferably so formed that it engages the glass only at the points and y, being spaced from the glass therebetween as indicated at z. The points m determine the innermost position of the glass in the channel and the points y/ serve to localize the pressure of the channel on the glass. This causes the channel'to be more securely held on the glass.

The spaces .a afford a certain amount of lateral resiliency in the channel 9 which may be desirable in certain constructions, such, for example, as when inserting the cushioning device past the turned-back portions 4El of the lining 4, as shown in Fig. 2.

It is to be understood that one of the cushioning devices is secured upon each vertical edge of the slidable glass and is co-extensive therewith. The groove into which the cushioning device is fitted, Whether it be the rabbet 2 in the stile. as shown in Fig. 1, or in the lining element 4, as shown in Fig. 2, is of slightly less Width than the width of the cushion whereby the hairs 7 exert a pressure on the walls of the groove.

This produces the necessary friction slightly to retard translation of the gla ss and also provides the necessary cushioning to prevent vibration and chattering of the. glass. During the translation of the glass in the rabbet 2 or lining 4 the hairs will bend in the direction of such movement as .shown in Fig. 5.

From the foregoing it will be perceived that I have provided an economical, improved and effective cushioning device for window and door glass, which is due to the fact that only half the amount is required per window, may be made at a fraction of the cost of similar devices heretofore provided, and which obviates the necessity of grinding the edges of the glass inasmuch as -the edge is permanently encased within the cushioning device between which and the glass there is no relative movement.

It will also be perceived that I have provided a new method of making and attaching cushioning devices to the sliding glass of automobile windows and doors.

Without further analysis, the foregoing will so fully reveal the gist of this invention that others can, by applying current knowl edge, readilyadapt it for various utilizations by retaining one or more of the features that, from the standpoint of the prior art, fairly constitute essential characteristics of either the generic or specic aspects of this invention and, therefore, such adaptations should be, and are intended to be, comprehended within the meaning and range of equivalency of the following claims.

Having thus revealed this invention, I claim as new and desire to secure the following combinations and elements, or equivalents thereof, by Letters Patent of the United States 1. In combination with a window glass having its edge slidable in a groove formed in the window stile of individual metallic elements embracing only the opposite side edges of the glass and frictionally secured thereto to slide therewith, anda cushioning member having a brush-like surface, secured to and arranged exteriorly of each of said members and maintained in frictional engagement with the walls of said groove.

2. In an automobile window, the combination with a window stile formed with a vertically extending groove; of a window glass slidably mounted in said groove; and a brush-like cushioning device secured to and enclosing the edge of said glass to be moved vertically thereby, said cushioning device frictionally engaging the walls of said groove in all of the positions of said glass.

3. In a device of the character described, the combination of a stile having a vertically extending groove; a glass slidably mounted in sai-d groove; a metallic channel member frictionally secured upon the portion of the glass within the groove and movable with said glass, said channel member being substantially co-extensive with the glass; and a cushioning member, comprising a base having a myriad of relatively stiff hairs projecting perpendicularly therefrom, secured to said channel member and slidingly fitted.

within said groove.

4. In a device of the character described, the combination of a stile formed with a vertically extending groove; a substantially U-shaped lining element fixed within said groove; a glass having its marginal portion arranged within said lining; a resilient channel member surrounding the edge of the glass and frictionally secured thereto; and a cushioning member intervening between said channel member and said lining element, said member comprising a. sheet of. waterproof material and a myriad of relatively stif hairs having their inner ends secured in said waterproof material and their outer ends projecting outwardly therefrom and engaging the inner surfaces of said lining element.

5. As an article of manufacture a cushioning device for window glass comprising a substantially U -shaped channel of resilient metal normally arranged with its outer extremities spaced apart a distance less than the thickness of a glass adapted to be inserted therein,

whereby said channel frictionally grips the glass; and a cushioning element secured about the exterior of said channel and having an outer friction surface formed of a myriad of outwardly extending relatively stiff hairs.

6. As an article of manufacture, a cushioning device for window glass comprising a substantially U-shaped channel of resilient metal adapted to be frictionally secured about the edge of the glass and engaging the glass only at the corners thereofand at opposite sides of the glass along a line spaced inwardly from the edge thereof; and a cushioning element arranged about the exterior of said channel and secured thereto by portions of said channel being turned back into gripping relation with said cushioning element.

7. An article of manufacture as defined in the preceding claim, in which the cushioning element comprises a sheet of waterproof material having a myriad of relatively stiE hairs secured thereto, said hairs projecting outwardly therefrom and presenting a brushlike outer surface.

8. As an article of manufacture, a cushioning device for window glass comprising a substantially U-shaped channel of resilient met-al the outer extremities of which are spaced apart a vdistance less than the thick- CI-IAS. C. DUNN.

,j ness of a glass adapted to be 'inserted thereiso 

